# ########################################################################
# Copyright (C) 2016-2022 Advanced Micro Devices, Inc. All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell cop-
# ies of the Software, and to permit persons to whom the Software is furnished
# to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IM-
# PLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNE-
# CTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# ########################################################################

# The following helper functions wrap common cmake functions.  They are
# used to cope with a few wierdnesses of hipcc/nvcc.
# ########################################################################
# HELPER FUNCTIONS
# ########################################################################

# ########################################################################
# target_compile_features() override for CUDA
# ########################################################################
function( target_compile_features target_name )
  # With Cmake v3.5, hipcc (with nvcc backend) does not work with target_compile_features
  # Turn on -std=c++17 manually
  if( CUDA_FOUND AND ( CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER MATCHES ".*/nvcc$" ) )
    set_target_properties( ${target_name} PROPERTIES CXX_STANDARD 17 CXX_STANDARD_REQUIRED ON )
  else( )
    _target_compile_features( ${target_name} ${ARGN} )
  endif( )
endfunction( )

# ########################################################################
# target_link_libraries() override for CUDA
# ########################################################################
function( target_link_libraries target_name )
  # hipcc takes care of finding hip library dependencies internally; remove
  # explicit mentions of them so cmake doesn't complain on nvcc path
  if( CUDA_FOUND AND ( CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER MATCHES ".*/nvcc$" ) )
    foreach( link_library ${ARGN} )
      if( (link_library MATCHES "^hip::") )
      else( )
        if( TARGET ${link_library} )
          list( APPEND new_list -Xlinker ${link_library} )
        else( )
          list( APPEND new_list ${link_library} )
        endif( )
      endif( )
    endforeach( )
    _target_link_libraries( ${target_name} ${new_list} )
  else( )
    _target_link_libraries( ${target_name} ${ARGN} )
  endif( )
endfunction( )

# ########################################################################
# Main
# ########################################################################


set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)

# This is incremented when the ABI to the library changes
set( rocblas_SOVERSION 0.1 )

list( APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake )

# This option only works for make/nmake and the ninja generators, but no reason it shouldn't be on all the time
# This tells cmake to create a compile_commands.json file that can be used with clang tooling or vim
set( CMAKE_EXPORT_COMPILE_COMMANDS ON )

# set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-Bsymbolic")

# include( build-bitness )

# Print out compiler flags for viewing/debug
if( BUILD_VERBOSE )
  message( STATUS "rocfft_VERSION: ${rocfft_VERSION}" )
  message( STATUS "\t==>CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}" )
  message( STATUS "\t==>BUILD_SHARED_LIBS: ${BUILD_SHARED_LIBS}" )
  message( STATUS "\t==>ROCM_PATH link: " ${ROCM_PATH} )
  message( STATUS "\t==>CMAKE_INSTALL_PREFIX link: " ${CMAKE_INSTALL_PREFIX} )
  message( STATUS "\t==>CMAKE_MODULE_PATH link: " ${CMAKE_MODULE_PATH} )
  message( STATUS "\t==>CMAKE_PREFIX_PATH link: " ${CMAKE_PREFIX_PATH} )
  message( STATUS "\t==>CPACK_PACKAGING_INSTALL_PREFIX link: " ${CPACK_PACKAGING_INSTALL_PREFIX} )
  message( STATUS "==============" )
  message( STATUS "\t==>CMAKE_CXX_COMPILER: " ${CMAKE_CXX_FLAGS} )
  message( STATUS "\t==>CMAKE_CXX_COMPILER debug: " ${CMAKE_CXX_FLAGS_DEBUG} )
  message( STATUS "\t==>CMAKE_CXX_COMPILER release: " ${CMAKE_CXX_FLAGS_RELEASE} )
  message( STATUS "\t==>CMAKE_CXX_COMPILER relwithdebinfo: " ${CMAKE_CXX_FLAGS_RELWITHDEBINFO} )
  message( STATUS "\t==>CMAKE_EXE_LINKER_FLAGS: " ${CMAKE_EXE_LINKER_FLAGS} )
  message( STATUS "\t==>CMAKE_EXE_LINKER_FLAGS_RELEASE: " ${CMAKE_EXE_LINKER_FLAGS_RELEASE} )
  message( STATUS "\t==>CMAKE_SHARED_LINKER_FLAGS: " ${CMAKE_SHARED_LINKER_FLAGS} )
  message( STATUS "\t==>CMAKE_SHARED_LINKER_FLAGS_RELEASE: " ${CMAKE_SHARED_LINKER_FLAGS_RELEASE} )
  message( STATUS "==============" )
  message( STATUS "\t==>CMAKE_SHARED_LIBRARY_C_FLAGS: ${CMAKE_SHARED_LIBRARY_C_FLAGS}" )
  message( STATUS "\t==>CMAKE_SHARED_LIBRARY_CXX_FLAGS: ${CMAKE_SHARED_LIBRARY_CXX_FLAGS}" )
  message( STATUS "\t==>CMAKE_SHARED_LINKER_FLAGS: ${CMAKE_SHARED_LINKER_FLAGS}" )
  message( STATUS "\t==>CMAKE_SHARED_LINKER_FLAGS_DEBUG: ${CMAKE_SHARED_LINKER_FLAGS_DEBUG}" )
  message( STATUS "\t==>CMAKE_SHARED_LINKER_FLAGS_RELEASE: ${CMAKE_SHARED_LINKER_FLAGS_RELEASE}" )
endif( )


# configure a header file to pass the CMake version settings to the source, and package the header files in the output archive
configure_file( "${CMAKE_CURRENT_SOURCE_DIR}/include/internal/rocblas-version.h.in"
	"${PROJECT_BINARY_DIR}/include/rocblas/internal/rocblas-version.h" )


set( rocblas_headers_public
  include/rocblas.h
  include/internal/rocblas-types.h
  include/internal/rocblas_bfloat16.h
  include/internal/rocblas-auxiliary.h
  include/internal/rocblas-functions.h
  ${PROJECT_BINARY_DIR}/include/rocblas/internal/rocblas-version.h
)

source_group( "Header Files\\Public" FILES ${rocblas_headers_public} )

# Build into subdirectories
add_subdirectory( src )
